Fucidin is a topical antibiotic gel available in various sizes: 5g, 10g, 15g, and 30g. The key active ingredient, fusidic acid, effectively combats bacterial skin infections. It is commonly used to treat conditions such as impetigo, which manifests as weeping, crusty, and swollen skin patches, infected dermatitis, and infected cuts and grazes. Fucidin is also marketed under the names Fudic and Fusiwal.